I've seen it twice recently (2 different gyms).
Once on a short bald black dude (looks about 40ish)...his was in "ok" shape, nothing to be in awe over.
And the other is this little older white woman about 50-55 years old) who is clearly on HGH (she's super lean, has the tight GH belly and wears mid-drift tops with low rise tight workout pants).